Low-cost digital-signal-processor-based optical position sensor and its application to vibration control

Timothy N. Chang; Thomas J. Spirock

doi:10.1117/12.332807

17 December 1998 Low-cost digital-signal-processor-based optical position sensor and its application to vibration control

Timothy N. Chang, Thomas J. Spirock

Author Affiliations +

Proceedings Volume 3518, Sensors and Controls for Intelligent Machining, Agile Manufacturing, and Mechatronics; (1998) https://doi.org/10.1117/12.332807
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

A low cost, Digital Signal Processor (DSP) based optical position sensor and control system was developed on this work for the vibration control of flexible structures and assembly workcells. This system is based on Texas Instruments' TL220/230 programmable light-to-frequency converters which are interfaces to a TI TMS320C25 DSP. The sensor is a standard 8-pin dip powered by a single DC supply so that it may be mounted on robots or other industrial machines without causing any loading or perturbations. Effects of additive noise are also minimized as the sensor output is pulse position modulated TTL signals.

Citation Download Citation

Timothy N. Chang and Thomas J. Spirock "Low-cost digital-signal-processor-based optical position sensor and its application to vibration control", Proc. SPIE 3518, Sensors and Controls for Intelligent Machining, Agile Manufacturing, and Mechatronics, (17 December 1998); https://doi.org/10.1117/12.332807

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